Development of a green reversibly photoswitchable variant of Eos fluorescent protein with fixation resistance.

ABSTRACT: Superresolution microscopy determines the localization of fluorescent proteins with high precision, beyond the diffraction limit of light. Superresolution microscopic techniques include photoactivated localization microscopy (PALM), which can localize a single protein by the stochastic activation of its fluorescence. In the determination of single-molecule localization by PALM, the number of molecules that can be analyzed per image is limited. Thus, many images are required to reconstruct the localization of numerous molecules in the cell. However, most fluorescent proteins lose their fluorescence upon fixation. Here, we combined the amino acid substitutions of two Eos protein derivatives, Skylan-S and mEos4b, which are a green reversibly photoswitchable fluorescent protein (RSFP) and a fi

SUBMITTER: Osuga M 

PROVIDER: S-EPMC8693962 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature